The nonoxidative reactions of the pentose phosphate pathway convert pentose phosphates into hexose phosphates. (a) For every

Question:

The nonoxidative reactions of the pentose phosphate pathway convert pentose phosphates into hexose phosphates.
(a) For every 3 glucose phosphates that enter the pentose phosphate pathway, how many fructose-6-phosphates are recovered?
(b) For every 3 glucose-6-phosphates that enter the pentose phosphate pathway, how many glyceraldehyde-3-phosphates are recovered?